EP 2257576 A4 20111123 - A PROCESS FOR THE SYNTHESIS OF ALPHA-OLEFIN POLYMERIZATION PROCATALYSTS
Title (en)
A PROCESS FOR THE SYNTHESIS OF ALPHA-OLEFIN POLYMERIZATION PROCATALYSTS
Title (de)
VERFAHREN ZUR SYNTHESE VON PROKATALYSATOREN FÜR DIE ALPHA-OLEFIN-POLYMERISATION
Title (fr)
PROCÉDÉ DE SYNTHÈSE DE PROCATALYSEURS DE POLYMÉRISATION D'ALPHA-OLÉFINES
Publication
Application
Priority
- IN 2008000533 W 20080825
- IN 541MU2008 A 20080318
Abstract (en)
[origin: WO2009116057A2] The invention relates to a process for the synthesis of a Ziegler Natta procatalyst, the process comprising first treating magnesium alkoxide with a twice used mixed solvent of TiCl4 and chloro benzene to form a first stage product, then treating the first stage product with a once used mixed solvent of TiCl4 and chlorobenzene to form a second stage product and finally treating the second stage product with mixed solvent recovered by treatment of effluent from the first treatment with benzoyl chloride so as to convert contaminant of formula TiCl3OR in the effluent to an addition complex which is precipitated, filtered off and hydrolyzed to recover ethyl benzoate and to form Ti(OH)4 as a side product, the product after final treatment being subjected to a plurality of successive washing steps with used as well as recovered hexane.
IPC 8 full level
C08F 4/649 (2006.01); C08F 4/654 (2006.01); C08F 10/00 (2006.01)
CPC (source: EP US)
C08F 10/00 (2013.01 - EP US); C08F 110/06 (2013.01 - EP US); Y10T 428/2982 (2015.01 - EP US)
Citation (search report)
- [XI] US 4683215 A 19870728 - BILHOU JEAN L [NL], et al
- [X] US 2003064882 A1 20030403 - KILTY PETER A [US], et al
- [X] US 2006247123 A1 20061102 - SHAUB GINA R [US], et al
- [X] WO 2005103094 A1 20051103 - UNION CARBIDE CHEM PLASTIC [US], et al
- See references of WO 2009116057A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2009116057 A2 20090924; WO 2009116057 A3 20100422; WO 2009116057 A8 20100114; WO 2009116057 A8 20100225; EP 2257576 A2 20101208; EP 2257576 A4 20111123; EP 2257576 B1 20130220; KR 101539285 B1 20150724; KR 20110009110 A 20110127; MY 150510 A 20140130; US 2011015355 A1 20110120; US 8283424 B2 20121009
DOCDB simple family (application)
IN 2008000533 W 20080825; EP 08873373 A 20080825; KR 20107023289 A 20080825; MY PI20104375 A 20080825; US 93337008 A 20080825